Home / 36,028.40-54,074.60-21,218.80

Finding the Fourth Proportional to 36,028.40, 54,074.60 and 21,218.80

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Solution

The fourth proportional to 36,028.40, 54,074.60 and 21,218.80 is: 31,847.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,028.40 : 54,074.60 = 21,218.80 : x
  2. Step 2: Convert to fraction form
    36,028.40/54,074.60 = 21,218.80/x
  3. Step 3: Cross multiply
    36,028.40x = 54,074.60 × 21,218.80
  4. Step 4: Simplify right side
    36,028.40x = 1,147,398,122.48
  5. Step 5: Solve for x
    x = 1,147,398,122.48/36,028.40
  6. Step 6: Final answer
    x = 31,847.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.